#-*- coding:utf-8 -*-
import os, re 
"""
查看文件夹下的所有文件及文件夹  join为拼接函数
"""
def Look_File(path):
    for root , dirs, files in os.walk(path, True):
        print root          #主目录
        for item in files:  #主目录下的文件夹
            print os.path.join(root, item)
         
"""
计算文件夹 大小
"""        
def FileSize(path):
    size = 0L
    for root , dirs, files in os.walk(path, True):
        size += sum([os.path.getsize(os.path.join(root, name)) for name in files])   #目录下文件大小累加
        return size
     
         
if __name__ == '__main__':
    Look_File(".")
    print FileSize(".")